The $from and $to parameters specify the key names or property names to set up the map.
Optionally, one can further group the map according to a grouping field $group.
For example,
php
$array = [
['id' => '123', 'name' => 'aaa', 'class' => 'x'],
['id' => '124', 'name' => 'bbb', 'class' => 'x'],
['id' => '345', 'name' => 'ccc', 'class' => 'y'],
];
$result = ArrayHelper::map($array, 'id', 'name');
the result is:
[
'123' => 'aaa',
'124' => 'bbb',
'345' => 'ccc',
]
$result = ArrayHelper::map($array, 'id', 'name', 'class');
the result is:
[
'x' => [
'123' => 'aaa',
'124' => 'bbb',
],
'y' => [
'345' => 'ccc',
],
]
public static function getList()
{
$data = self::find()->all();
if ($data === null) {
throw new HttpException(404, "Ошибка");
}
return \yii\helpers\BaseArrayHelper::map($data, 'id', 'name');
}
/**
* @return array
*/
public function getDataOptions()
{
if ($this->data) {
return $this->data;
}
$modelClass = $this->getTargetModelClass();
$options = BaseArrayHelper::map($modelClass::find()->all(), $this->getTargetPrimaryKey(), $this->titleAttr);
return $options;
}